This is another version of the patch to fix
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82353
The patch was successfully bootstrapped on x86-64 with Go and Ada.
Committed as rev. 253796.
Index: ChangeLog
===================================================================
--- ChangeLog (revision 253795)
+++ ChangeLog (working copy)
@@ -1,3 +1,12 @@
+2017-10-16 Vladimir Makarov <vmaka...@redhat.com>
+
+ PR sanitizer/82353
+ * lra.c (collect_non_operand_hard_regs): Don't ignore operator
+ locations.
+ * lra-lives.c (bb_killed_pseudos, bb_gen_pseudos): Move up.
+ (make_hard_regno_born, make_hard_regno_dead): Update
+ bb_killed_pseudos and bb_gen_pseudos for fixed regs.
+
2017-10-16 Jeff Law <l...@redhat.com>
* tree-ssa-dse.c (live_bytes_read): Fix thinko.
Index: lra.c
===================================================================
--- lra.c (revision 253685)
+++ lra.c (working copy)
@@ -820,7 +820,8 @@ collect_non_operand_hard_regs (rtx *x, l
const char *fmt = GET_RTX_FORMAT (code);
for (i = 0; i < data->insn_static_data->n_operands; i++)
- if (x == data->operand_loc[i])
+ if (! data->insn_static_data->operand[i].is_operator
+ && x == data->operand_loc[i])
/* It is an operand loc. Stop here. */
return list;
for (i = 0; i < data->insn_static_data->n_dups; i++)
Index: lra-lives.c
===================================================================
--- lra-lives.c (revision 253685)
+++ lra-lives.c (working copy)
@@ -220,6 +220,9 @@ lra_intersected_live_ranges_p (lra_live_
return false;
}
+/* The corresponding bitmaps of BB currently being processed. */
+static bitmap bb_killed_pseudos, bb_gen_pseudos;
+
/* The function processing birth of hard register REGNO. It updates
living hard regs, START_LIVING, and conflict hard regs for living
pseudos. Conflict hard regs for the pic pseudo is not updated if
@@ -243,6 +246,8 @@ make_hard_regno_born (int regno, bool ch
|| i != REGNO (pic_offset_table_rtx))
#endif
SET_HARD_REG_BIT (lra_reg_info[i].conflict_hard_regs, regno);
+ if (fixed_regs[regno])
+ bitmap_set_bit (bb_gen_pseudos, regno);
}
/* Process the death of hard register REGNO. This updates
@@ -255,6 +260,11 @@ make_hard_regno_dead (int regno)
return;
sparseset_set_bit (start_dying, regno);
CLEAR_HARD_REG_BIT (hard_regs_live, regno);
+ if (fixed_regs[regno])
+ {
+ bitmap_clear_bit (bb_gen_pseudos, regno);
+ bitmap_set_bit (bb_killed_pseudos, regno);
+ }
}
/* Mark pseudo REGNO as living at program point POINT, update conflicting
@@ -299,9 +309,6 @@ mark_pseudo_dead (int regno, int point)
}
}
-/* The corresponding bitmaps of BB currently being processed. */
-static bitmap bb_killed_pseudos, bb_gen_pseudos;
-
/* Mark register REGNO (pseudo or hard register) in MODE as live at
program point POINT. Update BB_GEN_PSEUDOS.
Return TRUE if the liveness tracking sets were modified, or FALSE
